feat: Passwordless cross-device authentication

- Arkitektur: docs/auth/passwordless-architecture.md
- Backend: iom/quixzoom-auth-service/ (FastAPI + Redis)
- Webb: quixzoom-market-pages/se/login/ (QR-kod + polling)
- App: iom/quixzoom-app/src/features/auth/ (push + deep links)

Flöde: QR-kod → app-godkännande → webb-inloggad

landvex/node_modules/bull/lib/commands/isFinished-2.lua

@@ -0,0 +1,22 @@
+--[[
+  Checks if a job is finished (.i.e. is in the completed or failed set)
+
+  Input: 
+    KEYS[1] completed key
+    KEYS[2] failed key
+
+    ARGV[1] job id
+  Output:
+    0 - not finished.
+    1 - completed.
+    2 - failed.
+]]
+if redis.call("ZSCORE", KEYS[1], ARGV[1]) ~= false then
+  return 1
+end
+
+if redis.call("ZSCORE", KEYS[2], ARGV[1]) ~= false then
+  return 2
+end
+
+return redis.call("ZSCORE", KEYS[2], ARGV[1])